CVE-2026-107205: high-severity vulnerability in LMCache
LMCache through 0.5.5 Missing Authentication in MP Coordinator Fleet Control API
Published
18Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8
exploitation probability
—
observed exploitation
nono source reports it
LMCache through 0.5.5 contains a missing authentication vulnerability in the multiprocess coordinator that allows remote unauthenticated attackers to access its HTTP fleet control API listening on all interfaces by default. Attackers can register or deregister instances via /instances, overwrite quotas via /quota endpoints, inject events via /events, and enumerate /directory/keys to disrupt caching and disclose placement metadata.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
LMCache · LMCacheRelated CVEs — LMCache
In the same product, most dangerous first.
CVE-2026-105192CRITICALLMCache Unauthenticated RCE in multiprocess mode via pickle deserializationEPSS 0.7%CVE-2026-107207MEDIUMLMCache through 0.5.5 Missing Authentication in Frontend Node Catalog Allows SSRF Allowlist BypassEPSS —CVE-2026-107206HIGHLMCache through 0.5.5 Missing Authentication in MP HTTP Server Management APIEPSS —CVE-2026-107204CRITICALLMCache through 0.5.5 Unauthenticated RCE via /run_script EndpointEPSS —
References
https://github.com/LMCache/LMCachehttps://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/mp_coordinator/app.py#L238-L246https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/mp_coordinator/config.py#L71https://github.com/LMCache/LMCache/issues/5508https://www.vulncheck.com/advisories/lmcache-through-0.5.5-missing-authentication-in-mp-coordinator-fleet-control-api